Case C-569/18: Judgment of the Court (Ninth Chamber) of 17 October 2019 (request for a preliminary ruling from the Consiglio di Stato — Italy) — Caseificio Cirigliana Srl, Mail Srl, Sorì Italia Srl v Ministero delle Politiche agricole, alimentari e forestali, Presidenza del Consiglio dei Ministri, Ministero della Salute (Reference for a preliminary ruling — Regulation (EU) No 1151/2012 — Article 4(c) and Article 7(1)(e) — Quality schemes applicable to agricultural products and foodstuffs — Fair competition — PDO Mozzarella di Bufala Campana — Obligation to separate production areas for ‘PDO Mozzarella di Bufala Campana’)